Frequencies for first 10,000 rows of wt_cod variable in demo2016q1 dataset : Unit | abbreviatio | n for | patient's | weight | Freq. Percent Cum. ------------+----------------------------------- | 6,042 60.42 60.42 KG | 3,958 39.58 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 6 Apr 2017